Sennheiser HMEC 26, without mains

The Sennheiser HMEC 26 is an exceptionally lightweight and comfortable aviation headset with active NoiseGard™ noise compensation, designed for professional use in aircraft cockpits. It combines effective active noise reduction with low weight, excellent long-term comfort and clear voice transmission.

This version is supplied without a connection cable. Thanks to its modular cable system, the HMEC 26 can be combined with various separately available connection cables, allowing it to be adapted to different aircraft connectors and power supply configurations.

The integrated NoiseGard™ Active Noise Compensation reduces distracting ambient noise by up to 18 dB, particularly in the low-frequency range. This allows radio and intercom audio to be heard clearly at lower volume levels, helping to reduce acoustic fatigue during extended periods of use.

NoiseGard™ can be switched off if required. The HMEC 26 can then continue to be used as a conventional passive aviation headset.

The closed dynamic earphone systems rest on the ears and combine a compact design with effective passive noise attenuation. Weighing only approximately 210 g without the connection cable, the HMEC 26 is considerably lighter than many conventional over-ear ANR headsets, making it particularly comfortable for longer flights and professional operations.

The patented two-piece automatic headband provides excellent long-term comfort. It automatically adapts to the shape of the head when the headset is put on. Soft ear pads and low contact pressure contribute to a comfortable fit even during extended periods of use.

One earphone can be swivelled backwards for single-sided listening, allowing the pilot to hear direct conversations or ambient sounds without completely removing the headset.

For clear and reliable voice transmission, the HMEC 26 features a noise-compensated condenser microphone. It is specifically designed to provide excellent speech intelligibility even in demanding cockpit environments.

The flexible microphone boom allows precise positioning of the microphone in front of the mouth. Thanks to its swivelling design, the microphone can be worn on either the left or right side.

Integrated Peak Level Protection protects the user's hearing against sudden volume peaks above 110 dB, providing additional comfort and protection during operation.

The power supply for the NoiseGard™ electronics depends on the connection cable or power supply module being used. Depending on the configuration, NoiseGard™ can be powered by the aircraft electrical system or by batteries/rechargeable batteries. An Auto Shut-Off function helps extend battery life with appropriately equipped battery-powered configurations.

The modular design offers an additional advantage: the connection cable can be easily replaced, allowing the headset to be adapted to different applications, aircraft and connector systems.

Features:

Active aviation headset

NoiseGard™ Active Noise Compensation

Up to 18 dB active reduction of distracting ambient noise

NoiseGard™ can be switched off

Can also be used as a conventional passive headset

Closed dynamic earphone systems

On-Ear / Supra-Aural design

Exceptionally lightweight construction

Weight only approx. 210 g without connection cable

Excellent comfort even during longer flights

Patented two-piece automatic headband

Soft ear pads

Swivelling earphone system for single-sided listening

Noise-compensated condenser microphone

Excellent speech intelligibility even in demanding cockpit environments

Flexible microphone boom

Microphone can be worn on the left or right side

Peak Level Protection against volume peaks above 110 dB

Modular connection cable system

Connection cable can be easily replaced

NoiseGard™ power supply via aircraft electrical system or batteries/rechargeable batteries depending on cable configuration

Auto Shut-Off with compatible battery-powered configurations

Technical Specifications:

Model: Sennheiser HMEC 26

Application: Aviation / Aircraft Cockpit

Noise reduction: NoiseGard™ Active Noise Compensation + passive noise attenuation

Active noise compensation: Up to 18 dB

Design: Closed / On-Ear / Supra-Aural

Headphone transducer principle: Dynamic

Headphone frequency response: 20 – 14,000 Hz

Impedance: 600 Ohms Mono / 1,200 Ohms Stereo

Maximum sound pressure level: 120 dB SPL at 1 kHz

Total harmonic distortion: < 1% at 1 kHz / 95 dB SPL

Contact pressure: approx. 3.6 N

Microphone: Noise-compensated condenser microphone

Microphone frequency response: 100 – 6,000 Hz

Microphone supply voltage: 8 – 16 V DC

Weight without connection cable: approx. 210 g

Connection cable: Not included

NoiseGard™ power supply: Depending on the connection cable or power supply module used

Operating temperature: -15 °C to +55 °C

Important Connection Cable Information:

This Sennheiser HMEC 26 is supplied without a connection cable. A compatible connection cable suitable for the aircraft and the required power supply configuration is necessary for operation.

Thanks to the modular cable system, the headset can be combined with various compatible cable versions. Please select the appropriate connection cable separately according to the aircraft connector system and the required NoiseGard™ power supply.

Scope of Delivery:

Sennheiser HMEC 26 Aviation Headset

Cable clip

Microphone windscreen

Headset carrying case

Connection cable not included.

The Sennheiser HMEC 26 is particularly suitable for pilots looking for a lightweight, comfortable and flexibly configurable active aviation headset. With a weight of only approximately 210 g, NoiseGard™ active noise compensation of up to 18 dB, a noise-compensated microphone and a modular connection cable system, it is well suited to professional cockpit applications and different aircraft configurations. The separately available connection cables allow the HMEC 26 to be specifically adapted to the required connector system and power supply.

EASA Form 1 certificate not available